package com.ruoyi.common.utils;

public class String2HexUtils
{
	/**
	 * 字符串转换成为16进制(无需Unicode编码)
	 *
	 * @param str
	 * @return
	 */
	public static String str2HexStr(String str) {
		char[] chars = "0123456789ABCDEF".toCharArray();
		StringBuilder sb = new StringBuilder("");
		byte[] bs = str.getBytes();
		int bit;
		for (byte b : bs)
		{
			bit = (b & 0x0f0) >> 4;
			sb.append(chars[bit]);
			bit = b & 0x0f;
			sb.append(chars[bit]);
			// sb.append(' ');
		}
		return sb.toString().trim();
	}

	/**
	 * 16进制直接转换成为字符串(无需Unicode解码)
	 *
	 * @param hexStr
	 * @return
	 */
	public static String hexStr2Str(String hexStr) {
		String str = "0123456789ABCDEF";
		char[] hexs = hexStr.toCharArray();
		byte[] bytes = new byte[hexStr.length() / 2];
		int n;
		for (int i = 0; i < bytes.length; i++) {
			n = str.indexOf(hexs[2 * i]) * 16;
			n += str.indexOf(hexs[2 * i + 1]);
			bytes[i] = (byte) (n & 0xff);
		}
		return new String(bytes);
	}

	public static void main(String[] args) {
		String safarike = str2HexStr("safarike");
		System.out.println("safarike = " + safarike);

		String s = hexStr2Str("7361666172696B65");
		System.out.println("s = " + s);
	}
}
